Telephone-exchange system.



H. G. WEBSTER.

TELEE-HONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. I, 1913.

Patented July 17, 1917.

21 SHEETSSHEET I.

H. (a. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. 7, 1913- 1 ggyQQu Patented July 17, 1917.

2| SHEETSSHEET 2.

H. G. WEBSTER. TElEPHONE EXCHANGE SYSTEM.

APPLICATION FlLED MAR. 7, 1913- V Patented July 17, 1917.

21 8HEETS-SHEET 4.

H. G. WEBSTER. IELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. 7. 19l3- Patented July 1, 191 a'.

2\ SHEETS--SHEET 5 H. G. WEBSTER. TELEPHONE EXCHANGE SYSTEM.

APPLICATION men MAR. 1, 1913. p M

Patented; 51111711, 1914 H. G WEBSTER. TELEPHONE EXCHANGE SYSTEM.

APPUCATIO'N FILED MAR. 7. 1913.

Patented July 1?, 1917.

21 SHEETS-SHEET 1- H. 6. WEBSTER TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. 1. 19|3.-

Patented July 17, 1917 2| SHEETSSHEET 8.

C N-Tol way H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. 7, I913. IS3fi4m I Patented July 17, 1917.

21 SHEETS-SHEET 9- H; e WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION men MAR. 1. 1913.

Patented July 1? 1917.

21 SHEETS-SHEET l0 l m m G N 014K43 H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

Patented July 17, 1917.

21 SHEETS SHEET 11 a M m R A M D E L H N 0 H A c n. P P A n U 9 y 00 n0 2 y 1 W W a (5 Mada H. e. WEBSTER. TELEPHONE EXCHANGE SY(STEMK APPLICATION FILED MAR. 1. 1M3:

Patented: July 17, 191?.

21 SHEETS-SHEET l2- H. G. WEBSTER. TELEPHONE EXCHANGE SYSTEM.

APPucAfloN FILED MAR. 1. 1913.

Patented July 17, 191?.

21 SHEETSSHEET 13- SHo c new H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM. APPucATrbN FILED MAR. 7. His. L3,4EQ Patented July 1:, 1917.

21 $HEETSSHEET \4.

we. WEBSTER. TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. Tl 19l3- I Patented July 17, 1917.

2i SHEETSSHEET 15.

n r A M /Mv M HUM MA lililih lM wxo mar,

H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. 7, i913.

Patented July 17, 1917.

2! SHEETSSHEET I6.

H G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. 7| 1913.

Patented July 17, 1917 21 SHEETS-SHEET 17.

H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. I. 1913.

Patented July 17, 1917.

21 SHEETSSHEET 1'8.

J J A 4:3: mm m i=9 w m H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. 7, 1913.

Patented July 17, 1917.

21 SHEETSSHEET l9.

H. G. WEBSTER.

TELEPHONE EXCHANGE SYSTEM.

APPLICATION FILED MAR. 7. 1913.

7. 10 9 IT in Nw h m urn T0 0 mm m M P 42km Vis/M? UZZ; 

